IB/hfi1: Convert hfi1_error_port_qps() to use new QP iterator

/*

 * Copyright(c) 2015, 2016 Intel Corporation.

 * Copyright(c) 2015 - 2017 Intel Corporation.

 *

 * This file is provided under a dual BSD/GPLv2 license.  When using or

 * redistributing this file, you may do so under either license.

}

/**

 * hfi1_error_port_qps - put a port's RC/UC qps into error state

 * @ibp: the ibport.

 * @sl: the service level.

 * hfi1_qp_iter_cb - callback for iterator

 * @qp - the qp

 * @v - the sl in low bits of v

 *

 * This function places all RC/UC qps with a given service level into error

 * state. It is generally called to force upper lay apps to abandon stale qps

 * after an sl->sc mapping change.

 * This is called from the iterator callback to work

 * on an individual qp.

 */

void hfi1_error_port_qps(struct hfi1_ibport *ibp, u8 sl)

static void hfi1_qp_iter_cb(struct rvt_qp *qp, u64 v)

{

	struct rvt_qp *qp = NULL;

	struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);

	struct hfi1_ibdev *dev = &ppd->dd->verbs_dev;

	int n;

	int lastwqe;

	struct ib_event ev;

	struct hfi1_ibport *ibp =

		to_iport(qp->ibqp.device, qp->port_num);

	struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);

	u8 sl = (u8)v;

	rcu_read_lock();

	if (qp->port_num != ppd->port ||

	    (qp->ibqp.qp_type != IB_QPT_UC &&

	     qp->ibqp.qp_type != IB_QPT_RC) ||

	    rdma_ah_get_sl(&qp->remote_ah_attr) != sl ||

	    !(ib_rvt_state_ops[qp->state] & RVT_POST_SEND_OK))

		return;

	/* Deal only with RC/UC qps that use the given SL. */

	for (n = 0; n < dev->rdi.qp_dev->qp_table_size; n++) {

		for (qp = rcu_dereference(dev->rdi.qp_dev->qp_table[n]); qp;

			qp = rcu_dereference(qp->next)) {

			if (qp->port_num == ppd->port &&

			    (qp->ibqp.qp_type == IB_QPT_UC ||

			     qp->ibqp.qp_type == IB_QPT_RC) &&

			    rdma_ah_get_sl(&qp->remote_ah_attr) == sl &&

			    (ib_rvt_state_ops[qp->state] &

			     RVT_POST_SEND_OK)) {

	spin_lock_irq(&qp->r_lock);

	spin_lock(&qp->s_hlock);

	spin_lock(&qp->s_lock);

				lastwqe = rvt_error_qp(qp,

						       IB_WC_WR_FLUSH_ERR);

	lastwqe = rvt_error_qp(qp, IB_WC_WR_FLUSH_ERR);

	spin_unlock(&qp->s_lock);

	spin_unlock(&qp->s_hlock);

	spin_unlock_irq(&qp->r_lock);

	if (lastwqe) {

		ev.device = qp->ibqp.device;

		ev.element.qp = &qp->ibqp;

					ev.event =

						IB_EVENT_QP_LAST_WQE_REACHED;

					qp->ibqp.event_handler(&ev,

						qp->ibqp.qp_context);

				}

			}

		ev.event = IB_EVENT_QP_LAST_WQE_REACHED;

		qp->ibqp.event_handler(&ev, qp->ibqp.qp_context);

	}

}

	rcu_read_unlock();

/**

 * hfi1_error_port_qps - put a port's RC/UC qps into error state

 * @ibp: the ibport.

 * @sl: the service level.

 *

 * This function places all RC/UC qps with a given service level into error

 * state. It is generally called to force upper lay apps to abandon stale qps

 * after an sl->sc mapping change.

 */

void hfi1_error_port_qps(struct hfi1_ibport *ibp, u8 sl)

{

	struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);

	struct hfi1_ibdev *dev = &ppd->dd->verbs_dev;

	rvt_qp_iter(&dev->rdi, sl, hfi1_qp_iter_cb);

}